项目名称: 国产金星蕨科的分类学研究
项目编号: No.31500169
项目类型: 青年科学基金项目
立项/批准年度: 2016
项目学科: 生物科学
项目作者: 李中阳
作者单位: 赣南师范大学
项目金额: 20万元
中文摘要: 金星蕨科(Thelypteridaceae)是蕨类植物的一个大科,主要分布于亚洲热带、亚热带地区,也是中国蕨类植物区系的重要组成部分。金星蕨科的分类问题一直是蕨类植物系统学研究中争议的焦点,不同分类系统对科下属、亚属等的划分分歧很大。近年来分子系统学研究虽然初步解决了科下的分属问题,但与传统形态分类相比存在着较大差异。同时,对模式标本考证的不足,以及对形态性状认识的局限,造成了国产金星蕨科植物在命名与物种划分上严重的混乱。本研究拟对国产金星蕨科开展全面的标本查阅和广泛的野外考察,充分利用各种实验技术手段,综合形态学、解剖学、孢粉学和分子系统学等多方面证据,对国产金星蕨科植物进行全面的分类修订,探讨各形态性状的系统学意义与分类价值,探索更自然合理的金星蕨科科下分类系统。
中文关键词: 蕨类植物;金星蕨科;分类;修订;中国
英文摘要: Thelypteridaceae is a large fern family mainly distributed in tropical and subtropical regions of Asia. It also consists an important part of pteridophytes flora of China. The taxonomy of Thelypteridaceae has always been a “hot spot” in systematic study of ferns. The delimitation of genera and subgenera differs greatly among different systems. The molecular phylogeny studies have basically resolved this problem, but the result is controversial with those treatment based on morphology. Also, lacking study of type specimens and limited knowledge of morphological variation have caused chaos in naming and species delimitation in this family. In this study, plenty of herbarium study and extensive field work will be applied. Also all effective facilities and techniques will be used. A comprehensive taxonomic revision of Thelypteridaceae from China will be made based on evidences from morphology, anatomy, palynology and molecular phylogeny. The systematic and taxonomic implications of different characters will be discussed, and a more natural intrafamilial system of Thelypteridaceae will be detected.
英文关键词: Pteridophytes;Thelypteridaceae;Taxonomy;Revision;China